added check to prevent an author/topic being associated (with one song) twice (causing an error)

This commit is contained in:
andreas 2010-07-17 17:01:47 +02:00
parent dacfe58bea
commit f458f80ce2
1 changed files with 19 additions and 7 deletions

View File

@ -388,9 +388,16 @@ class SongMaintenanceForm(QtGui.QDialog, Ui_SongMaintenanceDialog):
songs = self.songmanager.get_all_objects_filtered(AuthorsSongs,
AuthorsSongs.author_id == existing_author.id)
for song in songs:
song.author_id = new_author.id
self.songmanager.save_object(song)
self.songmanager.delete_object(Author, existing_author.id)
# We have to check if the song has already the new_author as author.
# If that is the case we must not change song.author_id to the
# new_author's id, because then they were not unique.
temp_song = self.songmanager.get_all_objects_filtered(AuthorsSongs,
and_(AuthorsSongs.author_id == new_author.id,
AuthorsSongs.song_id == song.song_id))
if len(temp_song) < 1:
song.author_id = new_author.id
self.songmanager.save_object(song)
self.songmanager.delete_object(Author, existing_author.id)
def mergeTopics(self, existing_topic):
'''
@ -400,10 +407,15 @@ class SongMaintenanceForm(QtGui.QDialog, Ui_SongMaintenanceDialog):
songs = self.songmanager.get_all_objects_filtered(SongsTopics,
SongsTopics.topic_id == existing_topic.id)
for song in songs:
song.topic_id = new_topic.id
self.songmanager.save_object(song)
songs = self.songmanager.get_all_objects_filtered(SongsTopics,
SongsTopics.topic_id == new_topic.id)
# We have to check if the song has already the new_topic as topic.
# If that is the case we must not change song.topic_id to the
# new_topic's id, because then they were not unique.
temp_song = self.songmanager.get_all_objects_filtered(SongsTopics,
and_(SongsTopics.topic_id == new_topic.id,
SongsTopics.song_id == song.song_id))
if len(temp_song) < 1:
song.topic_id = new_topic.id
self.songmanager.save_object(song)
self.songmanager.delete_object(Topic, existing_topic.id)
def mergeBooks(self, existing_book):